<!-- sider start -->
<div class="sider">
    <a href="/html/login.html">
        <i class="iconfont icon-renwu"></i>
        <p>个人中心</p>
    </a>
    <a href="/html/cart.html">
        <i class="iconfont icon-gouwuche"></i>
        <p>购物车</p>
    </a>
    <a href="">
        <i class="iconfont icon-kefu active"></i>
        <p class="active">在线客服</p>
    </a>
    <div class="re-top">
        <i class="iconfont icon-top"></i>
        <p>回到顶部</p>
    </div>
</div>
<!-- sider end -->